text: Three adult birds shield the front of the young, while also spreading their wings and ruffling their feathers to warn predators?
classes:  No, the adult birds are united trying their best to protect the young from the clutches of dangerous predators.  Also, the adult birds are united trying their best to protect the young from the clutches of dangerous predators.  Yes, the adult birds are united trying their best to protect the young from the clutches of dangerous predators.